Weigh from Afar
Operation: 1. Take a small personal item and place it on the left ordinary weighing pan, observe the displayed weight value; 2. Then place the small item on the right suspended tray, observe the displayed weight value. Function Overview: The exhibit consists of an ordinary electronic scale with digital display and a non-contact weighing electronic scale. The non-contact weighing electronic scale is composed of a set of mutually repelling magnets, a guiding mechanism, and an ordinary electronic scale. Visitors can place their personal items on it for weighing and compare the differences between the two scales. Scientific Principle: How is the weight of an item on the suspended tray, which does not touch the weighing pan, measured? The non-contact scale uses exactly the same ordinary electronic scale as the left one, but a magnet is installed on top of the scale, and another magnet is installed under the tray. Because magnets have the property that like poles repel and opposite poles attract, these two magnets installed in the same orientation form a magnetic levitation combination. When an item is placed on the tray, it exerts pressure on the electronic scale below through the magnetic levitation combination, and the weight of the item is measured. However, although we have calibrated the electronic scale to zero, removing the weight of the tray and other objects from the reading, due to the influence of friction between the magnet and the transparent plastic tube, the actual weighing result of the non-contact scale still has a certain measurement error. Think about it, where in daily life are the principles of like poles repelling and opposite poles attracting applied?
Options
- China Science and Technology Museum Standard Edition CSTM Standard EditionDimensions (unit: m): 0.75×0.68×1.09 Brand: KexMall Model: PopsciCat-Mobile-068 1. Materials: ① Base: flame-retardant ABS injection molding, thickness ≧4mm ② Tabletop: compact laminate, thickness ≧12mm ③ Instruction sign: acrylic UV printing ④ Tabletop fixing parts: standard triangular lock ⑤ Protective cover: colored acrylic + transparent acrylic ⑥ Weighing pan: anodized aluminum alloy 2. Main Configuration: ① Electronic control: electrical logic control system, equipped with KexMall® K1 type special PLC controller with protection for science exhibits ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Button: self-resetting 22mm stainless steel metal button with ring light ④ Weighing module: custom-made 3. Energy Requirements: AC100-240V, 50/60Hz 100W
Operation: 1. Take a small personal item and place it on the left ordinary weighing pan, observe the displayed weight value; 2. Then place the small item on the right suspended tray, observe the displayed weight value. Function Overview: The exhibit consists of an ordinary electronic scale with digital display and a non-contact weighing electronic scale. The non-contact weighing electronic scale is composed of a set of mutually repelling magnets, a guiding mechanism, and an ordinary electronic scale. Visitors can place their personal items on it for weighing and compare the differences between the two scales. Scientific Principle: How is the weight of an item on the suspended tray, which does not touch the weighing pan, measured? The non-contact scale uses exactly the same ordinary electronic scale as the left one, but a magnet is installed on top of the scale, and another magnet is installed under the tray. Because magnets have the property that like poles repel and opposite poles attract, these two magnets installed in the same orientation form a magnetic levitation combination. When an item is placed on the tray, it exerts pressure on the electronic scale below through the magnetic levitation combination, and the weight of the item is measured. However, although we have calibrated the electronic scale to zero, removing the weight of the tray and other objects from the reading, due to the influence of friction between the magnet and the transparent plastic tube, the actual weighing result of the non-contact scale still has a certain measurement error. Think about it, where in daily life are the principles of like poles repelling and opposite poles attracting applied?
- Optimized Popular Edition Optimized EditionDimensions (unit: m): 0.75×0.68×1.09 Brand: KexMall Model: PopsciCat-Mobile-068 1. Materials: ① Base: flame-retardant ABS injection molding, thickness ≧4mm ② Tabletop: compact laminate, thickness ≧12mm ③ Instruction sign: acrylic UV printing ④ Tabletop fixing parts: standard triangular lock ⑤ Protective cover: colored acrylic + transparent acrylic ⑥ Weighing pan: anodized aluminum alloy 2. Main Configuration: ① Electronic control: electrical logic control system, equipped with KexMall® K1 type special PLC controller with protection for science exhibits ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Button: self-resetting 22mm stainless steel metal button with ring light ④ Weighing module: custom-made 3. Energy Requirements: AC100-240V, 50/60Hz 100W
Operation: 1. Take a small personal item and place it on the left ordinary weighing pan, observe the displayed weight value; 2. Then place the small item on the right suspended tray, observe the displayed weight value. Function Overview: The exhibit consists of an ordinary electronic scale with digital display and a non-contact weighing electronic scale. The non-contact weighing electronic scale is composed of a set of mutually repelling magnets, a guiding mechanism, and an ordinary electronic scale. Visitors can place their personal items on it for weighing and compare the differences between the two scales. Scientific Principle: How is the weight of an item on the suspended tray, which does not touch the weighing pan, measured? The non-contact scale uses exactly the same ordinary electronic scale as the left one, but a magnet is installed on top of the scale, and another magnet is installed under the tray. Because magnets have the property that like poles repel and opposite poles attract, these two magnets installed in the same orientation form a magnetic levitation combination. When an item is placed on the tray, it exerts pressure on the electronic scale below through the magnetic levitation combination, and the weight of the item is measured. However, although we have calibrated the electronic scale to zero, removing the weight of the tray and other objects from the reading, due to the influence of friction between the magnet and the transparent plastic tube, the actual weighing result of the non-contact scale still has a certain measurement error. Think about it, where in daily life are the principles of like poles repelling and opposite poles attracting applied?